68780240

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{6563}}^1$

素因数の和:6707

約数の個数: 40

約数和(自身を含む): 161159328

約数和(自身を除く): 92379088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 5240, 6563, 10480, 13126, 26252, 32815, 52504, 65630, 105008, 131260, 262520, 525040, 859753, 1719506, 3439012, 4298765, 6878024, 8597530, 13756048, 17195060, 34390120, 68780240]

約数ペア:

[(1, 68780240), (2, 34390120), (4, 17195060), (5, 13756048), (8, 8597530), (10, 6878024), (16, 4298765), (20, 3439012), (40, 1719506), (80, 859753), (131, 525040), (262, 262520), (524, 131260), (655, 105008), (1048, 65630), (1310, 52504), (2096, 32815), (2620, 26252), (5240, 13126), (6563, 10480)]